Stove and range door



(NoModel.)

A. C. MASON.

STOVE AND RANGE DOOR. No. 334,258. v Patented Jan. l2, 1886.

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L I L l we. I i Mew/'a 7 UNITED STATES PATENT OFFICE.

ALVIN O. MASON, OF HYDE PARK, ILLINOIS.

STOVE AND RANGE DOOR.

SPECIFICATION forming part of Letters Patent No. 334,258, dated January12, 1886. Application led May29,1885. Serial No. 167,018. (No model.)

To all whom t may concern.-

Be it known that I, ALVIN C. MASON, of Hyde Park, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Stove and Range Doors, of which the following is a description,reference being had to the accompanying drawings, in whichl Figure l isa front View of a range to which said invention is applied, portionsbeing broken away at the ends to show the interior. Fig. 2 is an endview of said range, with a portion broken away to show the eounterpoisemechanism within, while the door is shown in section. Fig. 3 is a viewof the inside of said door.

Like letters of reference indicate like parts in the different figures.

The object of my invention is, primarily, to provide a door for theovens of stoves and ranges, b v which said ovens may be ventilated,While at the same time the heated air within the oven is prevented fromescaping too rapidly, and thus causing the oven to cool. A furtherobject is to so construct said door that it may open from the top andform a horizontal shelf when open, a suitable counter-balance beingprovided to prevent a sudden fall thereof, with the resulting unduestrain upon the hinges, all of which is hereinafter more particularlydescribed, and definitely pointed out in the claim.

In the drawings, A represents the usual cooking-range, provided withlugs or bearings a a cast thereon or bolted thereto at the bottom andupon either side of the oven, to which is secured, by means of the usualtrunnions, b b, my improved door B. Said door consists of an outerplate, b', Fig. 2, provided with a suitable number ofprojecting studs,b2, upon the inside thereof, to which is attached, by means of screwsb3, Figs. 2 and 3, an inner plate, B', leaving an air space or cavitybetween the plates. The outer plate, Za', is provided with a series ofperforations, b4, Figs. l and 2, preferably arranged in a circular formand upon the inside of said plate, and loosely attached thereto by abolt having a thumb-piece, b5, is a circular plate, b, Fig. 2, which islikewise provided with perforations bi, corresponding in number andposition to those in the outer plate. Said bolt, with thumb-piece b5, isrigidly attached to the plate b, so that the latter may be rotatedthereby, thus opening or closing the perforations b4 at will. The innerplate, B', is cut away around its outer edges, as at 118, Figs. 2 and 3,thereby leaving air-passages around the entire periphery of said plate.This arrangement enables the heat to be retained within the oven, andkeeps the outer plate, b', cool, while at the same time a suflicientquantity of fresh air may be admitted to ventilate the oven, said airbeing thereby so uniformly and evenly distributed as not to interferewith the process of baking. It is obvious that by adjusting thethumb-piece b5 a proper amount of air may be admitted at all times tosecure the best results.

As the hinges or trunnions of doors, when constructed in the mannershown, are liable to become broken from the falling ofsaid doors, I haveprovided a device whereby a sudden jar from said cause may be preventedand the door protected from injury. The trunnion b next to the end ofthestove or range is squared, as shown at b", Figs. 2 and 3, and a crank,C, fitted thereto. 'Io the opposite end of said crank is looselyattached a link, D, which in turn is loosely connected by means of abolt or screw, d, Fig. 2, to the end of the arm cof an elbow, E, thelower end, E', of which is enlarged to form a weight. The elbow E isloosely suspended upon a stud, e', which is rigidlyattached to the wallor end plate of the stove, so that the weight is free to swing withinthe space between the oven and the end plate of the stove, as clearlyshown in Fig. l. When the door B is closed, said crank, link, and elbowassume the respective positions shown in dotted lines in Fig. 2; but asthe door is opened, and the free end of the crank C moved in the arcdescribed thereby, the elbow Eis caused to swing upon its axis, whichraises the weight E to counterpoise that of said door. Two or moreledges, a a', attached to the outer stove-plate, are preferably used asadditional supports for said door when open, and the latter may beclosed and secured by means of the usual latch, f, as clearly shown inFig. l.

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I do not elairn, broadly, a Weighted lever or Within the Vertical Hue ofsaid stove, and concounterpoise in combination with a stove or struotedsubstantially in the manner and for ro range door; but the purposesspecified.

What I do claim is- 5 The combination, with a stove or range, of ALVIN CMASON' a door having a horizontal axis, and the sus Witnesses: pendedWeighted elbow E, link D, and arm D. H. FLETCHER, C, said elbow, link,and arm being arranged M. M. GRIDLEY.

